Sorry man, I’m not knowledgeable enough about computers to provide a summary, but I’ll mention this fun tidbit: apparently, the shipped version of task manager contained thus guy’s home phone number in the code by accident. He commented it out, but left the phone number in there, which means he can find instances of the source code being hosted online by reverse searching his home phone. Which is still a number he maintains, and he asks people not to call. Which is a bold thing to leave in the video imo